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ISL83387E Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL83387E Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 13 page 1 ® FN6040.1 ISL83387E +/-15kV ESD Protected, +3V to +5.5V, 1Microamp, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply The Intersil ISL83387E is a 3.0V to 5.5V powered RS-232 transceiver which meets ElA/TIA-232 and V.28/V.24 specifications, even at VCC = 3.0V. Additionally, it provides ± 15kV ESD protection (IEC61000-4-2 Air Gap and Human Body Model) on transmitter outputs and receiver inputs (RS-232 pins). Targeted applications are PDAs, Palmtops, and notebook and laptop computers where the low operational, and even lower standby power consumption is critical. Efficient on-chip charge pumps, coupled with manual and enhanced automatic powerdown functions, reduce the standby supply current to a 1 µA trickle. TSSOP packaging, and the use of small, low value capacitors ensure board space savings as well. Data rates greater than 250kbps are guaranteed at worst case load conditions. The ISL83387E features a VL pin that adjusts the logic pin output levels and input thresholds to values compatible with the VCC powering the external logic (e.g., a UART). This device includes an enhanced automatic powerdown function which powers down the on-chip power-supply and driver circuits. This occurs when all receiver and transmitter inputs detect no signal transitions for a period of 30 seconds. It power back up, automatically, whenever it senses a transition on any transmitter or receiver input. Table 1 summarizes the features of the ISL83387E, while Application Note AN9863 summarizes the features of each device comprising the 3V RS-232 family. Features •VL Supply Pin for Compatibility with Mixed Voltage Systems • ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000) • Low Power, Pin Compatible Upgrade for MAX3387E • Manual and Enhanced Automatic Powerdown Features • Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V • On-Chip Charge Pumps Require Only Four External 0.1 µF Capacitors • Receivers Stay Active in Powerdown • Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300 µA • Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps • Wide Power Supply Range . . . . . . . Single +3V to +5.5V • Low Supply Current in Powerdown State. . . . . . . . . < 1 µA • Pb-Free Plus Anneal Available (RoHS Compliant) Applications • Any System Requiring RS-232 Communication Ports - Battery Powered, Hand-Held, and Portable Equipment - Laptop Computers, Notebooks, Palmtops - Digital Cameras - PDA’s and PDA Cradles - Cellular/Mobile Phones Ordering Information PART NO. (BRAND) TEMP. RANGE (°C) PACKAGE PKG. DWG. #. ISL83387EIV (83387EIV) -40 to 85 24 Ld TSSOP M24.173 ISL83387EIV-T (83387EIV) -40 to 85 Tape and Reel M24.173 ISL83387EIVZ (Note) (83387EIVZ) -40 to 85 24 Ld TSSOP (Pb-free) M24.173 ISL83387EIVZ-T (Note) (83387EIVZ) -40 to 85 Tape and Reel (Pb-free) M24.173 NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. Data Sheet July 8, 2005 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003, 2005. All Rights Reserved |
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